function comment_notify_form_alter in Comment Notify 6

Same name and namespace in other branches

1. 5.2 comment_notify.module \comment_notify_form_alter()
2. 5 comment_notify.module \comment_notify_form_alter()
3. 7 comment_notify.module \comment_notify_form_alter()

Insert our checkbox, add a submit button, and populate fields.

File

./comment_notify.module, line 77

This module provides comment follow-up e-mail notification for anonymous and registered users.

Code

function comment_notify_form_alter(&$form, &$form_state, $form_id) {
  global $user;

  // Only alter the form if it's a comment form and the user has the permission to subscribe.
  if ($form_id == 'comment_form' && (user_access('subscribe to comments') || user_access('administer comments'))) {

    // Only add the checkbox if this is an enabled content type
    $node = node_load($form['nid']['#value'] ? $form['nid']['#value'] : $form['nid']['#default_value']);
    $enabled_types = variable_get('comment_notify_node_types', drupal_map_assoc(array(
      $node->type,
    )));
    if (empty($enabled_types[$node->type])) {
      return;
    }
    $available_options = _comment_notify_options();
    drupal_add_css(drupal_get_path('module', 'comment_notify') . '/comment_notify.css');
    drupal_add_js(drupal_get_path('module', 'comment_notify') . '/comment_notify.js');

    // Add the checkbox for anonymous users and set the default based on admin settings.
    if ($user->uid == 0) {

      // If anonymous user's can't enter their e-mail don't tempt them with the checkbox.
      if (empty($form['mail'])) {
        return;
      }
      $preference = variable_get('comment_notify_default_anon_mailalert', COMMENT_NOTIFY_DISABLED);
    }
    else {
      $user_preference = db_result(db_query("SELECT comment_notify FROM {comment_notify_user_settings} WHERE uid = %d", $user->uid));
      $preference = strlen($user_preference) ? $user_preference : variable_get('comment_notify_default_registered_mailalert', COMMENT_NOTIFY_DISABLED);
    }

    // If you want to hide this on your site see http://drupal.org/node/322482
    $form['notify_settings'] = array(
      '#prefix' => '<div class="clear-block">',
      '#suffix' => '</div>',
    );
    $form['notify_settings']['notify'] = array(
      '#type' => 'checkbox',
      '#title' => t('Notify me when new comments are posted'),
      '#default_value' => $preference,
    );
    if (count($available_options) > 1) {
      $form['notify_settings']['notify_type'] = array(
        '#type' => 'radios',
        '#options' => $available_options,
        '#default_value' => $preference,
      );
    }
    else {
      $form['notify_settings']['notify_type'] = array(
        '#type' => 'hidden',
        '#value' => key($available_options),
      );
    }
    $form['notify_settings']['notify_type']['#default_value'] = $preference;

    // If this is an existing comment we set the default value based on their selection last time.
    if ($form['cid']['#value'] != '') {
      $notify = db_result(db_query("SELECT notify FROM {comment_notify} WHERE cid = %d", $form['cid']['#value']));
      $form['notify_settings']['notify']['#default_value'] = $notify;
      if (count($available_options) > 1) {
        $form['notify_settings']['notify_type']['#default_value'] = $notify;
      }
      else {
        $form['notify_settings']['notify_type']['#default_value'] = key($available_options);
      }
    }
  }
}